CN211904547U - Locking shaft for locking and airtight test of protective airtight door - Google Patents
Locking shaft for locking and airtight test of protective airtight door Download PDFInfo
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- CN211904547U CN211904547U CN202020261222.XU CN202020261222U CN211904547U CN 211904547 U CN211904547 U CN 211904547U CN 202020261222 U CN202020261222 U CN 202020261222U CN 211904547 U CN211904547 U CN 211904547U
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- airtight door
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Abstract
The invention belongs to the field of civil air defense engineering quality detection, and particularly relates to a locking shaft for locking of a protective airtight door and an air tightness test of the protective airtight door.
Description
Technical Field
The invention belongs to the field of civil air defense engineering quality detection, and particularly relates to a protective airtight door lock and a lock shaft for an on-site airtight test of a protective airtight door.
Background
According to the test and quality detection standard of the protective equipment of civil air-defense engineering, the airtight performance test is required to be carried out on the protective airtight door, the airtight test can be carried out in a laboratory in the production process of the protective airtight door, the protective airtight door on the installation site has two forms of a single door and a double door, when the airtight test of the single door is carried out, an overpressure chamber is firstly required to be constructed, namely, an airtight wall is constructed behind the airtight door, when the airtight test of the double doors is carried out, the overpressure chamber is formed between the two doors, and as the door frame and the doors cannot be damaged in the inspection process, an inflation channel in the overpressure chamber is blocked, the airtight test is difficult to carry out, and the conventional detection of the installation size is generally.
Disclosure of Invention
The invention provides a protective airtight door lock and a lock shaft for the field airtight test of a protective airtight door, aiming at solving the difficult problem of the field airtight test of the protective airtight door.
The existing protective airtight door is locked and shown in figures 1 to 4, and comprises a lock sleeve 1 and a locking device, wherein the lock sleeve 1 is welded on a lock hole of the protective airtight door, the locking device comprises a lock shaft 2, an inner lever 3, an inner washer 4, an outer washer 5, an outer wrench 6 and a lock nut 7, the lock shaft 2 sequentially comprises a threaded section, a waist-shaped section, a straight section 11, a blocking platform section 14, a 90-degree elbow section 12 and a lock handle section 13 from the outer end, the inner lever 3 is welded on the 90-degree elbow section 12, an inner hole of the outer wrench 6 is a waist-shaped hole, the lock shaft 2 is sequentially inserted into the inner washer 4, the lock sleeve 1, the outer washer 5 and the outer wrench 6, the waist-shaped hole of the outer wrench 6 is matched with the waist-shaped section of the lock shaft 2, and the lock nut 7 locks the inner washer 4, the lock sleeve 1, the outer washer 5 and the outer wrench 6 on the end surface of the blocking platform section 14 of the lock; the protective airtight door is provided with a clamping groove as shown in fig. 5, after the airtight door is closed, the locking handle section 13 of the locking shaft 2 is tightly pressed in the clamping groove by rotating the inner pull rod 3 at the inner side of the door or rotating the outer wrench 6 outside the door, so that the protective airtight door is locked.
The technical scheme of the invention is to improve the existing lock, namely, a vent hole is arranged in a lock shaft 2, the inlet of the vent hole is positioned at the outer end of the lock shaft 2, the outlet is positioned behind a blocking platform section 14 or the blocking platform section 14, preferably on the blocking platform section, the inlet of the vent hole is provided with pipe threads, and the outlet of the vent hole is provided with a plug.
When the protective airtight door lock is used for carrying out an air tightness test, after an overpressure chamber is constructed, the air tightness test of the protective airtight door can be carried out only by opening the plug of the vent hole outlet and connecting the pipe joint of the inflation pipe of the test equipment into the pipe thread of the vent hole inlet.
The invention also provides a lock shaft for the airtight test of the protective airtight door, and the lock shaft is a lock shaft for locking the protective airtight door.
When the air tightness test is carried out, the locked lock shaft of the existing closed door is firstly detached, the lock shaft is replaced by the lock shaft, the pipe joint of the inflation pipe of the test equipment is connected with the pipe thread of the vent hole inlet, and then the air tightness test of the protective closed door can be carried out on the protective closed door provided with the existing closed door.
According to the lock shaft for the locking of the protective airtight door and the air tightness test of the protective airtight door, the air vent is formed in the lock shaft, the pipe joint is arranged at the inlet end of the air vent, the air tightness test of the protective airtight door can be realized, the technical problems that an inflation channel is blocked and the test is difficult in the air tightness test of the existing protective airtight door are solved, the existing lock shaft can be conveniently replaced, the locking mode and the locking structure of the existing locking are not changed when the lock shaft is replaced, and the air tightness test of the existing protective airtight door can be performed after replacement.
Drawings
Fig. 1 is a block diagram of a conventional protective airtight door latch.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a sectional view taken along line a-a of fig. 2.
Fig. 4 is a sectional view taken along line B-B in fig. 1.
Fig. 5 is a groove-shaped view of a locking slot on a door opening of a protective airtight door.
Fig. 6 is a block diagram of an embodiment of a protective containment door latch of the present invention.
Fig. 7 is a left side view of fig. 6.
Fig. 8 is a sectional view taken along line C-C of fig. 7.
Fig. 9 is a cross-sectional view taken along line D-D of fig. 6.
Fig. 10 is a structural view of the latch spindle of fig. 6.
Fig. 11 is a sectional view taken along line E-E of fig. 10.
In the figure: 1. The lock comprises a lock sleeve, 2, a lock shaft, 3, an inner lever, 4, an inner washer, 5, an outer washer, 6, an outer wrench, 7, a lock nut, 8, a pipe thread, 9, a thread section, 10, a waist-shaped section, 11, a straight section, 12, a 90-degree elbow section, 13, a lock handle section, 14, a baffle section, 15, an air vent, 16 and a plug.
Detailed Description
Fig. 6 to 11 show an embodiment of the invention for locking a protective airtight door, which comprises a lock sleeve 1 and a locking device, wherein the lock sleeve 1 is welded on a lock hole of the protective airtight door, the locking device comprises a lock shaft 2, an inner lever 3, an inner gasket 4, an outer gasket 5, an outer wrench 6 and a lock nut 7, the lock shaft 2 is shown in fig. 10, the lock shaft 2 is provided with a threaded section 9, a waist-shaped section 10, a straight section 11, a blocking platform section 14, a 90-degree elbow section 12 and a lock handle section 13 in sequence from the outer end, a vent hole 15 is arranged in the lock shaft 2, the inlet of the vent hole 15 is positioned at the outer end of the lock shaft 2, the outlet is positioned on the blocking platform section 14, and the inlet of the vent hole 15 is provided; a plug 16 is arranged at the outlet of the vent hole 15, the inner wrench rod 3 is welded on the 90-degree elbow section 12, the inner hole of the outer wrench 6 is a waist-shaped hole, the lock shaft 2 is sequentially inserted into the inner gasket 4, the lock sleeve 1, the outer gasket 5 and the outer wrench 6, the waist-shaped hole of the outer wrench 6 is matched with the waist-shaped section 10 of the lock shaft 2, and the lock nut 7 locks the inner gasket 4, the lock sleeve 1, the outer gasket 5 and the outer wrench 6 on the end face of the baffle table section 14 of the lock shaft 2.
When the protective airtight door lock is used for an air tightness test, after an overpressure chamber is constructed, the air tightness test of the protective airtight door can be carried out only by opening the plug 16 at the outlet of the vent hole 15 and connecting the pipe joint of the inflation pipe of the test equipment to the pipe thread 8 at the inlet of the vent hole 15.
When the protective airtight door without the protective airtight door provided by the invention is tested, the airtight test of the protective airtight door can be carried out only by detaching the locking shaft of the existing protective airtight door lock and replacing the locking shaft 2 of the embodiment, and the airtight test can be used as the locking shaft for the on-site airtight test of the protective airtight door.
Claims (3)
1. The utility model provides a protection airtight door shutting, includes lock tube (1) and locking device, lock tube (1) welds on the lockhole of protection airtight door, locking device includes lock axle (2), interior pull rod (3), interior packing ring (4), outer packing ring (5), outer spanner (6), lock nut (7), lock axle (2) are screw thread section (9), waist type section (10), straight section (11), keep off platform section (14), 90 elbow section (12), lock handle section (13) by the outer end in proper order, interior pull rod (3) welds on 90 elbow section (12), the hole of outer spanner (6) is waist shape hole, lock axle (2) insert interior packing ring (4) in proper order, lock tube (1), outer packing ring (5), outer spanner (6), the waist shape hole of outer spanner (6) and the waist type section (10) cooperation of lock axle (2), lock nut (7) are with interior packing ring (4), Lock sleeve (1), outer packing ring (5), outer spanner (6) lock on the fender platform section (14) terminal surface of lock shaft (2), its characterized in that: an air vent (15) is formed in the lock shaft (2), the inlet of the air vent (15) is located at the outer end of the lock shaft (2), the outlet of the air vent is located behind the blocking platform section (14), pipe threads (8) are arranged at the inlet of the air vent (15), and a plug (16) is mounted on the outlet of the air vent (15).
2. The protective containment door latch of claim 1, wherein: the outlet of the vent hole (15) is positioned on the blocking platform section (14).
3. The utility model provides a protective airtight door is lock axle for air-tight test which characterized in that: the lock shaft for the airtight test of the protective airtight door is the lock shaft (2) in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020261222.XU CN211904547U (en) | 2020-03-05 | 2020-03-05 | Locking shaft for locking and airtight test of protective airtight door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020261222.XU CN211904547U (en) | 2020-03-05 | 2020-03-05 | Locking shaft for locking and airtight test of protective airtight door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211904547U true CN211904547U (en) | 2020-11-10 |
Family
ID=73301354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020261222.XU Active CN211904547U (en) | 2020-03-05 | 2020-03-05 | Locking shaft for locking and airtight test of protective airtight door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211904547U (en) |
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2020
- 2020-03-05 CN CN202020261222.XU patent/CN211904547U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 650501 China (Yunnan) pilot Free Trade Zone, Kunming City, Yunnan Province Patentee after: China building materials inspection and Certification Group Yunnan Hexin Co.,Ltd. Address before: 650217 modern international integrated logistics center, block a4-6-2, export processing zone, economic development zone, Kunming City, Yunnan Province Patentee before: YUNNAN HEXIN ENGINEERING DETECTION CONSULTING Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 650501 China (Yunnan) pilot Free Trade Zone, Kunming City, Yunnan Province Patentee after: China National Inspection and testing Holding Group Yunnan Co.,Ltd. Address before: 650501 China (Yunnan) pilot Free Trade Zone, Kunming City, Yunnan Province Patentee before: China building materials inspection and Certification Group Yunnan Hexin Co.,Ltd. |